In the book “Daf ̓ al Manāwāh”, Sayyid Huṣayn Muftī Kurki who was well known as “Sibt Muhaqqiq Thanī”, narrated from the book “Barāhīn” as follows:
Abī Ḥamzah narrated from His Excellency Khādim (pbuh), that he stated, ‘All the angels who are sent by God to earth, for some affairs visit the Imām [Zamān (mGehr)], at first. Then, they present our deeds to the Sir. In fact, he [Sāhib al Amr (mGehr)]. is the cause of commuting angels from The Almighty God to him.
In addition, Abu al Wafā-e Shirāzī narrated that, the Messenger of God (pbuh&h) stated to him, “Whenever you feel trouble and miserable, request His Excellency Hujjah. He will save you; he is the rescuer and refuge for the ones who request him!”
Moreover, in the book “Baṣāʾir”, Shaykhayn Kashī and Ṣafar narrated from Ramallah that he mentioned:
Once at the time of Amīr al Mu’menin (pbuh), I had a high grade fever. It was Friday when I felt very weak. I thought to myself, ‘Nothing is better than taking a bath to Ghusl. Then, I will pray [Friday Prayer)] behind Imām Alī (pbuh).’
Anyhow, I did so and came to the mosque. As Amīr al Mu’menin (pbuh) went up the pulpit, I felt I had a fever again. Well, Amīr al Mu’menin (pbuh) came down and entered Qasr after the prayer. So, I went to him to speak.
But [Surprisingly,] he stated, ‘O, Ramilah! What’s the matter? I saw your body members were shivering/restless!’ I explained to him what happened and I decided to pray behind him. He stated, ‘O, Ramilah! There is no faithful one who gets sick, except we will be sick because of them. Or if they get sad, we will be sad too. And if they pray to God, we will say Amin. And if they don’t do anything, we will pray for them.
Reference:
1-A, Qummi, Muntahī al Ᾱmāl